<template>
  <div class="app-container">
    <div class="search-div">
      <el-form label-width="70px" size="small">
        <el-row style="display:flex">
          <el-col :span="8">
            <el-form-item label="关 键 字">
              <el-input style="width: 95%" v-model="searchObj.keyword" placeholder="用户名/姓名/手机号码"></el-input>
            </el-form-item>
          </el-col>
          <el-col>
            <el-button type="primary" icon="el-icon-search" size="mini" @click="fetchData()" :disabled="$hasBP('bnt.sysUser.search')  === false">搜索</el-button>
            <el-button icon="el-icon-refresh" size="mini" @click="resetData">重置</el-button>
            <el-button style="position: absolute;right: 20px" type="success"  icon="el-icon-plus" size="mini" @click="add" :disabled="$hasBP('bnt.sysUser.add')  === false">添 加</el-button>
          </el-col>
        </el-row>
      </el-form>
    </div>

    <!-- 列表 -->
    <el-table
      v-loading="listLoading"
      :data="list"
      stripe
      border
      style="width: 100%;margin-top: 10px;">

      <el-table-column
        label="序号"
        width="70"
        align="center">
        <template slot-scope="scope">
          {{ (page - 1) * limit + scope.$index + 1 }}
        </template>
      </el-table-column>

      <el-table-column prop="username" label="用户名" width="180"/>
      <el-table-column prop="realname" label="姓名" width="110"/>
      <el-table-column prop="phone" label="手机"/>
      <el-table-column label="状态" width="80">
        <template slot-scope="scope">
          <el-switch
            v-model="scope.row.status === 1"
            @change="switchStatus(scope.row)">
          </el-switch>
        </template>
      </el-table-column>

      <el-table-column label="操作" align="center" fixed="right">
        <template slot-scope="scope">
          <el-button type="primary" icon="el-icon-edit" size="mini" @click="edit(scope.row.id)" title="修改"/>
          <el-button type="danger" icon="el-icon-delete" size="mini" @click="removeDataById(scope.row.id)" title="删除"/>
          <el-button type="warning" icon="el-icon-baseball" size="mini" @click="showAssignRole(scope.row)"
                     title="分配角色"/>
        </template>
      </el-table-column>
    </el-table>

    <!-- 分页组件 -->
    <el-pagination
      :current-page="page"
      :total="total"
      :page-size="limit"
      style="padding: 30px 0; text-align: center;"
      layout="total, prev, pager, next, jumper"
      @current-change="fetchData"
    />

    <el-dialog title="分配角色" :visible.sync="dialogRoleVisible">
      <el-form label-width="80px">
        <el-form-item label="用户名">
          <el-input disabled :value="sysUser.username"></el-input>
        </el-form-item>

        <el-form-item label="角色列表">
          <el-checkbox :indeterminate="isIndeterminate" v-model="checkAll" @change="handleCheckAllChange">全选
          </el-checkbox>
          <div style="margin: 15px 0;"></div>
          <el-checkbox-group v-model="userRoleIds" @change="handleCheckedChange">
            <el-checkbox v-for="role in allRoles" :key="role.id" :label="role.id">{{role.roleName}}</el-checkbox>
          </el-checkbox-group>
        </el-form-item>
      </el-form>
      <div slot="footer">
        <el-button type="primary" @click="assignRole" size="small">保存</el-button>
        <el-button @click="dialogRoleVisible = false" size="small">取消</el-button>
      </div>
    </el-dialog>

    <el-dialog title="添加/修改" :visible.sync="dialogVisible" width="40%">
      <el-form ref="dataForm" :model="sysUser" label-width="100px" size="small" style="padding-right: 40px;">
        <el-form-item label="用户名" prop="username">
          <el-input v-model="sysUser.username"/>
        </el-form-item>
        <el-form-item label="姓名" prop="realname">
          <el-input v-model="sysUser.realname"/>
        </el-form-item>
        <el-form-item label="手机" prop="phone">
          <el-input v-model="sysUser.phone"/>
        </el-form-item>
        <el-form-item label="密码" prop="password">
          <el-input v-model="sysUser.password"/>
        </el-form-item>
      </el-form>
      <span slot="footer" class="dialog-footer">
        <el-button @click="dialogVisible = false" size="small" icon="el-icon-refresh-right">取 消</el-button>
        <el-button type="primary" icon="el-icon-check" @click="saveOrUpdate()" size="small">确 定</el-button>
      </span>
    </el-dialog>
  </div>
</template>

<script>
  import api from '@/api/system/user'
  import roleApi from '@/api/system/role'

  export default {
    data() {
      return {
        listLoading: true, // 数据是否正在加载
        list: null, // banner列表
        total: 0, // 数据库中的总记录数
        page: 1, // 默认页码
        limit: 10, // 每页记录数
        searchObj: {}, // 查询表单对象
        dialogVisible: false,
        sysUser: {},
        saveBtnDisabled: false,

        dialogRoleVisible: false,
        allRoles: [], // 所有角色列表
        userRoleIds: [], // 用户的角色ID的列表
        isIndeterminate: false, // 是否是不确定的
        checkAll: false // 是否全选
      }
    },
    created() {
      this.fetchData()
    },
    methods: {
      //列表
      fetchData(page = 1) {
        this.page = page
        api.getPageList(this.page, this.limit, this.searchObj)
          .then(response => {
            this.listLoading = false
            this.list = response.data.records
            this.total = response.data.total
          })
      },
      // 重置表单
      resetData() {
        //清空表单
        this.searchObj = {}
        //查询所有数据
        this.fetchData()
      },
      //添加弹框的方法
      add() {
        this.dialogVisible = true
        this.sysUser = {}
      },
      //添加或修改的方法
      saveOrUpdate() {
        if (!this.sysUser.id) {
          this.save()
        } else {
          this.update()
        }
      },
      //修改方法
      update() {
        api.update(this.sysUser)
          .then(response => {
            //提示
            this.$message.success('操作成功')
            //关闭弹框
            this.dialogVisible = false
            //刷新
            this.fetchData()
          })
      },
      //添加
      save() {
        api.save(this.sysUser)
          .then(response => {
            //提示
            this.$message.success('操作成功')
            //关闭弹框
            this.dialogVisible = false
            //刷新
            this.fetchData()
          })
      },
      //根据id查询，数据回显
      edit(id) {
        //弹出框
        this.dialogVisible = true
        //调用接口查询
        api.getUserId(id)
          .then(response => {
            this.sysUser = response.data
          })
      },
      //删除用户
      removeDataById(id) {
        //======弹框======
        this.$confirm('此操作将永久删除该用户, 是否继续?', '提示', {
          confirmButtonText: '确定',
          cancelButtonText: '取消',
          type: 'warning'
        }).then(() => {
          //调用删除方法
          api.removeById(id)
            .then(response => {
              //提示
              this.$message({
                type: 'success',
                message: '删除成功!'
              });
              //刷新页面
              this.fetchData()
            })
        })
      },
      //更改用户状态
      switchStatus(row) {
        //判断，如果当前用户可用，修改成禁用
        row.status = row.status === 1 ? 0 : 1
        api.updateStatus(row.id, row.status)
          .then(response => {
            this.$message.success(response.message || '操作成功')
            this.fetchData()
          })
      },

      //展示分配角色
      showAssignRole(row) {
        this.sysUser = row
        this.dialogRoleVisible = true
        roleApi.getRolesByUserId(row.id).then(response => {
          this.allRoles = response.data.allRoles
          this.userRoleIds = response.data.userRoleIds
          this.checkAll = this.userRoleIds.length === this.allRoles.length
          this.isIndeterminate = this.userRoleIds.length > 0 && this.userRoleIds.length < this.allRoles.length
        })
      },

      /*
      全选勾选状态发生改变的监听
      */
      handleCheckAllChange(value) {// value 当前勾选状态true/false
        // 如果当前全选, userRoleIds就是所有角色id的数组, 否则是空数组
        this.userRoleIds = value ? this.allRoles.map(item => item.id) : []
        // 如果当前不是全选也不全不选时, 指定为false
        this.isIndeterminate = false
      },

      /*
      角色列表选中项发生改变的监听
      */
      handleCheckedChange(value) {
        const {userRoleIds, allRoles} = this
        this.checkAll = userRoleIds.length === allRoles.length && allRoles.length > 0
        this.isIndeterminate = userRoleIds.length > 0 && userRoleIds.length < allRoles.length
      },

      //分配角色
      assignRole() {
        let assginRoleVo = {
          userId: this.sysUser.id,
          roleIdList: this.userRoleIds
        }
        roleApi.assignRoles(assginRoleVo).then(response => {
          this.$message.success(response.message || '分配角色成功')
          this.dialogRoleVisible = false
          this.fetchData(this.page)
        })
      },
    }
  }
</script>
